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55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
/******************************************************************************
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* Top contributors (to current version):
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* Gereon Kremer, Mathias Preiner
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*
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* This file is part of the cvc5 project.
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*
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* Copyright (c) 2009-2022 by the authors listed in the file AUTHORS
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* in the top-level source directory and their institutional affiliations.
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* All rights reserved. See the file COPYING in the top-level source
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* directory for licensing information.
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* ****************************************************************************
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*
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* A simple demonstration of the transcendental extension.
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*/
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#include <iostream>
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#include <cvc5/cvc5.h>
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using namespace std;
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using namespace cvc5;
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int main()
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{
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Solver slv;
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slv.setLogic("QF_NRAT");
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Sort real = slv.getRealSort();
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// Variables
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Term x = slv.mkConst(real, "x");
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Term y = slv.mkConst(real, "y");
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// Helper terms
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Term two = slv.mkReal(2);
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Term pi = slv.mkPi();
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Term twopi = slv.mkTerm(MULT, {two, pi});
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Term ysq = slv.mkTerm(MULT, {y, y});
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Term sinx = slv.mkTerm(SINE, {x});
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// Formulas
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Term x_gt_pi = slv.mkTerm(GT, {x, pi});
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Term x_lt_tpi = slv.mkTerm(LT, {x, twopi});
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Term ysq_lt_sinx = slv.mkTerm(LT, {ysq, sinx});
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slv.assertFormula(x_gt_pi);
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slv.assertFormula(x_lt_tpi);
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slv.assertFormula(ysq_lt_sinx);
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cout << "cvc5 should report UNSAT." << endl;
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cout << "Result from cvc5 is: " << slv.checkSat() << endl;
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return 0;
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}
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